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Programmer Control EC7850A1122
The Honeywell EC7850A1122 is a microprocessor-based integrated burner control for full modulation applications. It provides automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.
Features include; Access for external electrical voltage checks. Application flexibility and communication interface capability. Five LEDs provide sequence information. Five function Run/Test Switch. Interchangeable plug-in amplifiers. Local or remote annunciation of operation and fault information (optional). Non-volatile memory retains history files and lockout status after loss of power. Compatible with existing Honeywell flame detectors.
Required Components: Q7800A,B Universal Wiring Subbases. R7847, R7849, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
220-240V, 50 or 60 Hz Flame establishing Period: Main: 3 sec or 5 sec or intermittent Pilot: 3 sec or 5 sec Post Purge: 15 sec LHL-LF & HF Proven Consult the attached pdf for further specifications.
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